4. A painter can paint a wall of area 20 m^2 in 10 hours. If he works at a constant
speed, how much time will he take to paint a wall of area 30 m^2 ?
Answers
Answered by
4
Answer:
15 hours
Step-by-step explanation:
He paints a wall of area 20m² in 10 hours
He will paint a wall of area 1 m² in
10÷20 = 1/2 hours
Hence, time taken to paint a wall of area 30 m²
= (1/2×30) hours
= 15 hours
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Answered by
3
Answer:
15 hours
Step-by-step explanation:
suppose time taken for painting 30m² = x
20/10 = 30/x
x = 30 x 10/20
x = 15 hours
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